private void handleAddEvent(FacesContext context, PostAddToViewEvent event) {
// if the root is transient, then no action is ever needed here
if (context.getViewRoot().isTransient()) {
return;
}
UIComponent added = event.getComponent();
if (added.isTransient() || added instanceof UIViewRoot) {
return;
}
// this component, while not transient may be a child or facet
// of component that is. We'll have to search the parent hierarchy
// to the root to confirm.
UIComponent parent = added.getParent();
while (parent != null) {
if (parent.isTransient()) {
return;
}
parent = parent.getParent();
}
parent = added.getParent();
if (dynamicAdds == null) {
dynamicAdds = new LinkedHashMap<String, ComponentStruct>();
}
ComponentStruct toAdd = new ComponentStruct();
toAdd.clientId = added.getClientId(context);
toAdd.parentClientId = parent.getClientId(context);
// this needs work
int idx = parent.getChildren().indexOf(added);
if (idx == -1) {
// this must be a facet
for (Map.Entry<String, UIComponent> facet : parent.getFacets().entrySet()) {
if (facet.getValue() == added) {
toAdd.facetName = facet.getKey();
break;
}
}
} else {
toAdd.indexOfChildInParent = parent.getChildren().indexOf(added);
}
if (dynamicRemoves != null) {
dynamicRemoves.remove(toAdd.clientId);
}
added.getAttributes().put(DYNAMIC_COMPONENT, Boolean.TRUE);
dynamicAdds.put(toAdd.clientId, toAdd);
}
private boolean hasTransientAncestor(UIComponent component) {
UIComponent parent = component.getParent();
while (parent != null) {
if (parent.isTransient()) {
return true;
}
parent = parent.getParent();
}
return false;
}
/**
* Handle the remove.
*
* @param context the Faces context.
* @param component the UI component to add to the list as a REMOVE.
*/
private void handleRemove(FacesContext context, UIComponent component) {
if (!component.isTransient() && !hasTransientAncestor(component)) {
if (component.isInView()) {
decrementDynamicChildCount(component.getParent());
ComponentStruct struct = new ComponentStruct();
struct.action = ComponentStruct.REMOVE;
struct.clientId = component.getClientId(context);
struct.id = component.getId();
handleAddRemoveWithAutoPrune(component, struct);
}
}
}
/**
* Handle the add.
*
* @param context the Faces context.
* @param component the UI component to add to the list as an ADD.
*/
private void handleAdd(FacesContext context, UIComponent component) {
if (!component.isTransient() && !hasTransientAncestor(component)) {
if (component.getParent() != null && component.getParent().isInView()) {
String id = component.getId();
/*
* Since adding a component, can mean you are really reparenting
* it, we need to make sure the OLD clientId is not cached, we do
* that by setting the id.
*/
if (id != null) {
component.setId(id);
}
if (component.getParent().getFacets().containsValue(component)) {
Map facets = component.getParent().getFacets();
Iterator entries = facets.entrySet().iterator();
while (entries.hasNext()) {
Map.Entry entry = (Map.Entry) entries.next();
if (entry.getValue() == component) {
incrementDynamicChildCount(component.getParent());
component.clearInitialState();
component
.getAttributes()
.put(DYNAMIC_COMPONENT, component.getParent().getChildren().indexOf(component));
ComponentStruct struct = new ComponentStruct();
struct.action = ComponentStruct.ADD;
struct.facetName = entry.getKey().toString();
struct.parentClientId = component.getParent().getClientId(context);
struct.clientId = component.getClientId(context);
struct.id = component.getId();
handleAddRemoveWithAutoPrune(component, struct);
}
}
} else {
incrementDynamicChildCount(component.getParent());
component.clearInitialState();
component
.getAttributes()
.put(DYNAMIC_COMPONENT, component.getParent().getChildren().indexOf(component));
ComponentStruct struct = new ComponentStruct();
struct.action = ComponentStruct.ADD;
struct.parentClientId = component.getParent().getClientId(context);
struct.clientId = component.getClientId(context);
struct.id = component.getId();
handleAddRemoveWithAutoPrune(component, struct);
}
}
}
}
private void handleRemoveEvent(FacesContext context, PreRemoveFromViewEvent event) {
UIComponent removed = event.getComponent();
if (removed.isTransient()) {
return;
}
if (dynamicRemoves == null) {
dynamicRemoves = new ArrayList<String>();
}
String clientId = event.getComponent().getClientId(context);
if (dynamicAdds != null && dynamicAdds.containsKey(clientId)) {
dynamicAdds.remove(clientId);
}
dynamicRemoves.add(clientId);
}